{"id":22750,"date":"2024-01-17T12:00:32","date_gmt":"2024-01-17T03:00:32","guid":{"rendered":"https:\/\/www.nanghi.net\/?p=22750"},"modified":"2024-10-21T18:28:47","modified_gmt":"2024-10-21T09:28:47","slug":"pcm1795-dac%e3%83%a6%e3%83%8b%e3%83%83%e3%83%88%ef%bc%881%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.nanghi.net\/?p=22750","title":{"rendered":"PCM1795 DAC\u30e6\u30cb\u30c3\u30c8\uff08\u305d\u306e1\uff09"},"content":{"rendered":"

\u300032bit DAC\u3078\u30b9\u30c6\u30c3\u30d7\u30a2\u30c3\u30d7\u3002<\/p>\n

\"PCM1795
\n\u3000PCM1795 DAC\u57fa\u677f<\/strong><\/p>\n

\u3000\u97f3\u6e90\u306b32bit\u306e\u30cf\u30a4\u30ec\u30be\u97f3\u6e90\u304c\u7121\u3044\u306e\u3067\u610f\u5473\u304c\u306a\u3044\u3068\u601d\u3044\u3064\u3064\u3001\u3084\u306f\u308a\u30cf\u30a4\u30a8\u30f3\u30c9\u306e\u30c7\u30d0\u30a4\u30b9\u306f\u6c17\u306b\u306a\u308b\u3082\u306e\u3067\u96fb\u6d41\u51fa\u529b\u578b32bit DAC\u3067\u3042\u308bPCM1795\u306e\u30e6\u30cb\u30c3\u30c8\u306e\u88fd\u4f5c\u3092\u958b\u59cb\u3057\u307e\u3057\u305f\u3002\u56de\u8def\u3084\u5b9a\u6570\u306f\u57fa\u672c\u7684\u306b\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u8a18\u8f09\u306e\u6e2c\u5b9a\u56de\u8def\u306b\u6e96\u3058\u3066\u3044\u307e\u3059\u3002\u5f8c\u6bb5\u306eI\/V\u5909\u63db\u306b\u4f7f\u7528\u3059\u308bOPAMP\u306b\u306f\u4eca\u307e\u3067\u901a\u308aNJM5532DD\u3092\u63a1\u7528\u3057\u307e\u3059\u304c\u3001\u5e73\u8861\u30fb\u4e0d\u5e73\u8861\u5909\u63db\u306fNJM5532DD\u306e\u4e0a\u4f4d\u306e\u9ad8\u5e2f\u57df\u30fb\u4f4e\u30ce\u30a4\u30ba\u30d0\u30fc\u30b8\u30e7\u30f3NJM2122D\uff081.5nV\/\u221aHz<\/span>\uff09\u3092\u4f7f\u7528\u3057\u3066\u307f\u3088\u3046\u3068\u601d\u3044\u307e\u3059\u3002
\n\u3000\u4eca\u56de\u306f\u30c7\u30d0\u30a4\u30b9\u3092\u5148\u884c\u3057\u3066\u5165\u624b\u3057\u3066\u3044\u305f\u306e\u3067DAC\u57fa\u677f\u306e\u88fd\u4f5c\u304b\u3089\u7740\u624b\u3057\u307e\u3057\u305f\u3002
\n\u3000PCM1792\u3068\u30d4\u30f3\u30b3\u30f3\u30d1\u30c1\u30d6\u30eb\u306a\u305f\u3081\u57fa\u677f\u306e\u88fd\u4f5c\u306f\u305d\u3061\u3089\u3092\u898b\u306a\u304c\u3089\u5023\u3048\u3070\u3088\u304b\u3063\u305f\u306e\u3067\u914d\u7dda\u306b\u60a9\u3080\u4e8b\u306a\u304f\u3001\u304b\u306a\u308a\u697d\u30c1\u30f3\u306b\u88fd\u4f5c\u3067\u304d\u307e\u3057\u305f\u3002\u5148\u306e\u5931\u6557\u304b\u3089\u5e73\u8861\u96fb\u6d41\u51fa\u529b\u30b3\u30cd\u30af\u30bf\u306b\u306fGND\u3092\u8ffd\u52a0\u3057\u3066\u3044\u307e\u3059\u3002
\n\u3000PCM1795\u306fPCM1792\u306e\u30d4\u30f3\u30b3\u30f3\u30d1\u30c1\u30d6\u30eb\u306a\u3060\u3051\u3067\u306a\u304f\u30e2\u30fc\u30c9\u4e92\u63db\u3067\u3082\u3042\u308b\u305f\u3081\u3001PCM1792\u5411\u3051\u306b\u958b\u767a\u3057\u305f\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306f\u305d\u306e\u307e\u307e\u6d41\u7528\u3067\u304d\u308b\u306e\u3082\u30e1\u30ea\u30c3\u30c8\u306e\u4e00\u3064\u3067\u3059\u3002
\n\u3000PCM1792\u3068PC1795\u306e\u30b9\u30da\u30c3\u30af\u306e\u5dee\u3092\u307e\u3068\u3081\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n\n\n\n\n\n\n\n\n\n
\u9805\u76ee<\/td>\nPCM1792<\/strong><\/td>\nPCM1795<\/strong><\/td>\n<\/tr>\n
\u89e3\u50cf\u5ea6<\/td>\n24bit<\/td>\n32bit<\/td>\n<\/tr>\n
\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u30ec\u30f3\u30b8\uff082Vrms<\/sub>\uff09<\/td>\n127 dB<\/td>\n123 dB<\/td>\n<\/tr>\n
THD+N<\/td>\n0.0004%<\/td>\n0.0005%<\/td>\n<\/tr>\n
\u5e73\u8861\u51fa\u529b\u96fb\u6d41<\/td>\n7.8 mA<\/td>\n3.9 mA<\/td>\n<\/tr>\n
Stop-Band Attenuation<\/td>\n-130 dB<\/td>\n-98 dB<\/td>\n<\/tr>\n
Passband Ripple<\/td>\n\u00b10.000001 dB<\/td>\n\u00b10.0002 dB<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u3000PCM1792\u306f7.8mAp-p\u3068\u9ad8\u51fa\u529b\u3067\u3057\u305f\u304cPCM1795\u306f3.9mAp-p\u3068\u534a\u5206\u306e\u51fa\u529b\u3067\u3059\u3002\u305f\u3060\u3057PCM1795\u3082\u30e2\u30ce\u30e9\u30eb\u30e2\u30fc\u30c9\u304c\u3042\u308b\u306e\u3067\u5de6\u53f3\u5225\u3005\u306e\u30c7\u30d0\u30a4\u30b9\u306b\u5206\u3051\u3066\u51fa\u529b\u3059\u308b\u4e8b\u3067\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u30ec\u30f3\u30b8\u304c\u6539\u5584\u3055\u308c\u308b\u70b9\u306f\u540c\u3058\u3067\u3059\u3002
\n\u3000\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u30ec\u30f3\u30b8\u306f123dB\u3068PCM1792\u306b\u6bd4\u3079\u308b\u3068\u898b\u52a3\u308a\u3057\u307e\u3059\u304c\u3001\u5168\u9ad8\u8abf\u6ce2\u6b6a\u307f\u7387\uff0b\u96d1\u97f3\uff08THD+N\uff09\u306fPCM1792\u304c0.0004%\u306b\u5bfe\u3057PCM1795\u306f0.0005%\u3067\u307b\u3068\u3093\u3069\u540c\u3058\u3068\u512a\u79c0\u3067\u3059\u3002\u3053\u306e\u8fba\u308a\u306f\u30d9\u30fc\u30b9\u304c32bit\u306e\u5f37\u307f\u3067\u3057\u3087\u3046\u3002
\n\u3000\u5f15\u304d\u7d9a\u304d\u5f8c\u6bb5\u306e\u56de\u8def\u3084\u96fb\u6e90\u3092\u88fd\u4f5c\u3057\u3066\u884c\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u300032bit DAC\u3078\u30b9\u30c6\u30c3\u30d7\u30a2\u30c3\u30d7\u3002 \u3000PCM1795 DAC\u57fa\u677f \u3000\u97f3\u6e90\u306b32bit\u306e\u30cf\u30a4\u30ec\u30be\u97f3\u6e90\u304c\u7121\u3044\u306e\u3067\u610f\u5473\u304c\u306a\u3044\u3068\u601d\u3044\u3064\u3064\u3001\u3084\u306f\u308a\u30cf\u30a4\u30a8\u30f3\u30c9\u306e\u30c7\u30d0\u30a4\u30b9\u306f\u6c17\u306b\u306a\u308b\u3082\u306e\u3067\u96fb\u6d41\u51fa\u529b\u578b32bit DAC\u3067\u3042\u308bPCM17<\/p>\n","protected":false},"author":1,"featured_media":23121,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[1771,5155],"class_list":["post-22750","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cat5","tag-pcm1792","tag-pcm1795"],"_links":{"self":[{"href":"https:\/\/www.nanghi.net\/index.php?rest_route=\/wp\/v2\/posts\/22750","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nanghi.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nanghi.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nanghi.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nanghi.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=22750"}],"version-history":[{"count":12,"href":"https:\/\/www.nanghi.net\/index.php?rest_route=\/wp\/v2\/posts\/22750\/revisions"}],"predecessor-version":[{"id":25729,"href":"https:\/\/www.nanghi.net\/index.php?rest_route=\/wp\/v2\/posts\/22750\/revisions\/25729"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nanghi.net\/index.php?rest_route=\/wp\/v2\/media\/23121"}],"wp:attachment":[{"href":"https:\/\/www.nanghi.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=22750"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nanghi.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=22750"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nanghi.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=22750"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}